Subtract 48/12 from 21/50, Solve 21/50

Subtract 48/12 from 21/50

1^st number: 21/50, 2^nd number: 4 0/12

21/50 - 48/12 is -179/50.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 50 × 6 = 300,
21/50 = 21 × 6/50 × 6 = 126/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
48/12 = 48 × 25/12 × 25 = 1200/300
Subtract the two like fractions:
126/300 - 1200/300 = 126 - 1200/300 = -1074/300
After reducing the fraction, the answer is -179/50

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